
int gg;
int ceshi()
{
    int aa,cc;
    char *str;
    gg = 20;
    aa = 50;
    cc = aa  + gg;
    str = "hello world!";
    printf("zhong! %d + %s \n",cc,str);
}
int main()
{
    ceshi();
    return 0;
}
